1285809085 is an odd 10-digits composite number following 1285809084
and preceding 1285809086 . In scientific notation, it is written as 1.285809085 × 10^9.
The sum of its digits is 46. It has a total of 4 prime factors and 16 positive divisors.
There are 931818240 positive integers (up to 1285809085) that are relatively prime to 1285809085.
1285809085 has 16 divisors, whose sum is 1689209280
The reverse of 1285809085 is 5809085821
Previous prime number is 283
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 46
Digital Root 1
Name
one billion two hundred eighty-five million eight hundred nine thousand eighty-five
Scientific notation
1.285809085 × 10^9
Engineering notation
1.285809085 × 10^9
Prime Factorization
5 × 11 × 283 × 82609
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1285809085
Product of the distinct prime numbers
The prime factorization of 1285809085 is 5 × 11 × 283 × 82609.
Since it has a total of 4 prime factors.
1 , 2 , 97 , 99 , 651 , 135 , 536 , 3014 , 26098 , 72355 , 473026 , 142171 , 5948604 , 4588251 , 36772122 , 56500044 , 665635303 , 711490678 , 9749540850 , 5937073273
n×2
2571618170
n×3
3857427255
n×4
5143236340
n×5
6429045425
n÷2
642904542.5
n÷3
428603028.33333
n÷3
321452271.25
n÷5
257161817
n2
1653305003068537225
n3
2.1258345932215E+27
n4
2.7334174331715E+36
n5
3.5146529686692E+45
2 √n
35858.180168547
3 √n
1087.4070975379
4 √n
189.36256274287
5 √n
66.349139995397
1 , 5 , 11 , 55 , 283 , 1415 , 3113 , 15565 , 82609 , 413045 , 908699 , 4543495 , 23378347 , 116891735 , 257161817 , 1285809085
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1285809084
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1285809085 can be divided by 16 positive divisors.
The sum of these divisors (counting 1285809085) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100101000111110001110111101
3
Ternary
10022121110212110201
4
Quaternary
1030220332032331
5
Quinary
10113131342320
6
Senary
331331203501
8
Octal
11450761675
10
Decimal
1285809085
12
Duodecimal
2ba746591
16
Hexadecimal
4ca3e3bd
20
Vigesimal
101g62e5
36
Base36
l9jcn1
md5
9facd840dc1cc374d37bab7bd05023e1
sha1
86f9b23455a0da0545d295d3b9beee097fe4b469
sha256
6e8273c955bb0581efa934cf811ca11b55d2bf376977c08a487c3094e7107f89
sha512
3165eb4ecc0d200adf100b963183eefd8f8563a0cf1d9de7415a15dd57db7e55b6b7279a802b7629fdd8bdcbca4737c39340bbe6886f926bd76a7c1ed8624cea
ripemd-160
49b3eceffc4785525728b2710693a7dcad48ec4f
Diameter
2571618170
Circumference
8078976750.71
Area
5.1940108517834E+18
Volume
8.9046751210822E+27
Surface area
2.0776043407133E+19
Circumference
8078976750.71
Perimeter
5143236340
Area
1653305003068537225
Diagonal
1818408646.6295
Surface area
9.9198300184112E+18
Volume
2.1258345932215E+27
Space diagonal
2227086664.0536
Perimeter
3857427255
Area
7.1590206643063E+17
Altitude
1113543332.0268
Surface area
7.1590206643063E+17
Volume
2.5053200942464E+26
Height
606136215.54318